BRK SMI100-AC Ionization Hardwired Smoke Alarm with Battery Backup (Model 1046836)

Combination smoke and fire detectors from BRK integrates advanced photoelectric smoke sensing with a thermal heat sensor to deliver fast, reliable alerts to both smoldering fires and sudden temperature spikes. Designed for simple replacement of existing alarms, these detectors hardwire into your home’s 120 VAC power and include a battery backup to help maintain continuous operation—even during power interruptions.

With interconnect capability, triggering one alarm instantly notifies all others in the network, providing whole-house early warning. Ideal for new construction or retrofit projects, this pack meets UL 217 standards and offers a streamlined installation process without rewiring hassles.

Key Features

• Combination smoke (photoelectric) and thermal heat detection for broad coverage
• Hardwired 120 VAC power with battery backup for uninterrupted operation
• Interconnect up to 18 units for whole-house alarm synchronization
• One-touch test and hush button to verify operation and silence nuisance alerts
• Meets UL 217 safety standards for residential smoke alarms
• Simple installation replaces most existing hardwired alarms without rewiring